Join Date: Aug 2002
Location: WAS/TYO
Programs: UA 1K, AA EXP (3MM), DL PM, BONVOY TITANIUM, HYATT GLOBALIST, HILTON DIAMOND, IHG DIAMOND AMB, et al
Posts: 5,913
TK lounge wins, hands down, in IAD (as others have noted). I don't think I've stepped foot in a UA lounge at IAD for over 2 years. However, if you want a proper glass of Champagne, best option is either LH Senator lounge or Air France lounge (accessed via PP, although closed to PP members during the early-evening rush).
-FlyerBeek